[deliverable/linux.git] / drivers / net / wireless / mwifiex / util.c

/*
 * Marvell Wireless LAN device driver: utility functions
 *
 * Copyright (C) 2011, Marvell International Ltd.
 *
 * This software file (the "File") is distributed by Marvell International
 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
 * (the "License").  You may use, redistribute and/or modify this File in
 * accordance with the terms and conditions of the License, a copy of which
 * is available by writing to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
 *
 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
 * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
 * this warranty disclaimer.
 */

#include "decl.h"
#include "ioctl.h"
#include "util.h"
#include "fw.h"
#include "main.h"
#include "wmm.h"
#include "11n.h"

/*
 * Firmware initialization complete callback handler.
 *
 * This function wakes up the function waiting on the init
 * wait queue for the firmware initialization to complete.
 */
int mwifiex_init_fw_complete(struct mwifiex_adapter *adapter)
{

	adapter->init_wait_q_woken = true;
	wake_up_interruptible(&adapter->init_wait_q);
	return 0;
}

/*
 * Firmware shutdown complete callback handler.
 *
 * This function sets the hardware status to not ready and wakes up
 * the function waiting on the init wait queue for the firmware
 * shutdown to complete.
 */
int mwifiex_shutdown_fw_complete(struct mwifiex_adapter *adapter)
{
	adapter->hw_status = MWIFIEX_HW_STATUS_NOT_READY;
	adapter->init_wait_q_woken = true;
	wake_up_interruptible(&adapter->init_wait_q);
	return 0;
}

/*
 * This function sends init/shutdown command
 * to firmware.
 */
int mwifiex_init_shutdown_fw(struct mwifiex_private *priv,
			     u32 func_init_shutdown)
{
	u16 cmd;

	if (func_init_shutdown == MWIFIEX_FUNC_INIT) {
		cmd = HostCmd_CMD_FUNC_INIT;
	} else if (func_init_shutdown == MWIFIEX_FUNC_SHUTDOWN) {
		cmd = HostCmd_CMD_FUNC_SHUTDOWN;
	} else {
		dev_err(priv->adapter->dev, "unsupported parameter\n");
		return -1;
	}

	return mwifiex_send_cmd_sync(priv, cmd, HostCmd_ACT_GEN_SET, 0, NULL);
}
EXPORT_SYMBOL_GPL(mwifiex_init_shutdown_fw);

/*
 * IOCTL request handler to set/get debug information.
 *
 * This function collates/sets the information from/to different driver
 * structures.
 */
int mwifiex_get_debug_info(struct mwifiex_private *priv,
			   struct mwifiex_debug_info *info)
{
	struct mwifiex_adapter *adapter = priv->adapter;

	if (info) {
		memcpy(info->packets_out,
		       priv->wmm.packets_out,
		       sizeof(priv->wmm.packets_out));
		info->max_tx_buf_size = (u32) adapter->max_tx_buf_size;
		info->tx_buf_size = (u32) adapter->tx_buf_size;
		info->rx_tbl_num = mwifiex_get_rx_reorder_tbl(priv,
							      info->rx_tbl);
		info->tx_tbl_num = mwifiex_get_tx_ba_stream_tbl(priv,
								info->tx_tbl);
		info->ps_mode = adapter->ps_mode;
		info->ps_state = adapter->ps_state;
		info->is_deep_sleep = adapter->is_deep_sleep;
		info->pm_wakeup_card_req = adapter->pm_wakeup_card_req;
		info->pm_wakeup_fw_try = adapter->pm_wakeup_fw_try;
		info->is_hs_configured = adapter->is_hs_configured;
		info->hs_activated = adapter->hs_activated;
		info->num_cmd_host_to_card_failure
				= adapter->dbg.num_cmd_host_to_card_failure;
		info->num_cmd_sleep_cfm_host_to_card_failure
			= adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure;
		info->num_tx_host_to_card_failure
				= adapter->dbg.num_tx_host_to_card_failure;
		info->num_event_deauth = adapter->dbg.num_event_deauth;
		info->num_event_disassoc = adapter->dbg.num_event_disassoc;
		info->num_event_link_lost = adapter->dbg.num_event_link_lost;
		info->num_cmd_deauth = adapter->dbg.num_cmd_deauth;
		info->num_cmd_assoc_success =
					adapter->dbg.num_cmd_assoc_success;
		info->num_cmd_assoc_failure =
					adapter->dbg.num_cmd_assoc_failure;
		info->num_tx_timeout = adapter->dbg.num_tx_timeout;
		info->num_cmd_timeout = adapter->dbg.num_cmd_timeout;
		info->timeout_cmd_id = adapter->dbg.timeout_cmd_id;
		info->timeout_cmd_act = adapter->dbg.timeout_cmd_act;
		memcpy(info->last_cmd_id, adapter->dbg.last_cmd_id,
		       sizeof(adapter->dbg.last_cmd_id));
		memcpy(info->last_cmd_act, adapter->dbg.last_cmd_act,
		       sizeof(adapter->dbg.last_cmd_act));
		info->last_cmd_index = adapter->dbg.last_cmd_index;
		memcpy(info->last_cmd_resp_id, adapter->dbg.last_cmd_resp_id,
		       sizeof(adapter->dbg.last_cmd_resp_id));
		info->last_cmd_resp_index = adapter->dbg.last_cmd_resp_index;
		memcpy(info->last_event, adapter->dbg.last_event,
		       sizeof(adapter->dbg.last_event));
		info->last_event_index = adapter->dbg.last_event_index;
		info->data_sent = adapter->data_sent;
		info->cmd_sent = adapter->cmd_sent;
		info->cmd_resp_received = adapter->cmd_resp_received;
	}

	return 0;
}

/*
 * This function processes the received packet before sending it to the
 * kernel.
 *
 * It extracts the SKB from the received buffer and sends it to kernel.
 * In case the received buffer does not contain the data in SKB format,
 * the function creates a blank SKB, fills it with the data from the
 * received buffer and then sends this new SKB to the kernel.
 */
int mwifiex_recv_packet(struct mwifiex_adapter *adapter, struct sk_buff *skb)
{
	struct mwifiex_rxinfo *rx_info;
	struct mwifiex_private *priv;

	if (!skb)
		return -1;

	rx_info = MWIFIEX_SKB_RXCB(skb);
	priv = mwifiex_get_priv_by_id(adapter, rx_info->bss_num,
				      rx_info->bss_type);
	if (!priv)
		return -1;

	skb->dev = priv->netdev;
	skb->protocol = eth_type_trans(skb, priv->netdev);
	skb->ip_summed = CHECKSUM_NONE;
	priv->stats.rx_bytes += skb->len;
	priv->stats.rx_packets++;
	if (in_interrupt())
		netif_rx(skb);
	else
		netif_rx_ni(skb);

	return 0;
}

/*
 * IOCTL completion callback handler.
 *
 * This function is called when a pending IOCTL is completed.
 *
 * If work queue support is enabled, the function wakes up the
 * corresponding waiting function. Otherwise, it processes the
 * IOCTL response and frees the response buffer.
 */
int mwifiex_complete_cmd(struct mwifiex_adapter *adapter,
			 struct cmd_ctrl_node *cmd_node)
{
	atomic_dec(&adapter->cmd_pending);
	dev_dbg(adapter->dev, "cmd completed: status=%d\n",
		adapter->cmd_wait_q.status);

	*(cmd_node->condition) = true;

	if (adapter->cmd_wait_q.status == -ETIMEDOUT)
		dev_err(adapter->dev, "cmd timeout\n");
	else
		wake_up_interruptible(&adapter->cmd_wait_q.wait);

	return 0;
}
Commit	Line	Data
5e6e3a92 BZ	1	/*
	2	* Marvell Wireless LAN device driver: utility functions
	3	*
	4	* Copyright (C) 2011, Marvell International Ltd.
	5	*
	6	* This software file (the "File") is distributed by Marvell International
	7	* Ltd. under the terms of the GNU General Public License Version 2, June 1991
	8	* (the "License"). You may use, redistribute and/or modify this File in
	9	* accordance with the terms and conditions of the License, a copy of which
	10	* is available by writing to the Free Software Foundation, Inc.,
	11	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
	12	* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
	13	*
	14	* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
	15	* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
	16	* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
	17	* this warranty disclaimer.
	18	*/
	19
	20	#include "decl.h"
	21	#include "ioctl.h"
	22	#include "util.h"
	23	#include "fw.h"
	24	#include "main.h"
	25	#include "wmm.h"
	26	#include "11n.h"
	27
	28	/*
	29	* Firmware initialization complete callback handler.
	30	*
	31	* This function wakes up the function waiting on the init
	32	* wait queue for the firmware initialization to complete.
	33	*/
	34	int mwifiex_init_fw_complete(struct mwifiex_adapter *adapter)
	35	{
	36
	37	adapter->init_wait_q_woken = true;
	38	wake_up_interruptible(&adapter->init_wait_q);
	39	return 0;
	40	}
	41
	42	/*
	43	* Firmware shutdown complete callback handler.
	44	*
	45	* This function sets the hardware status to not ready and wakes up
	46	* the function waiting on the init wait queue for the firmware
	47	* shutdown to complete.
	48	*/
	49	int mwifiex_shutdown_fw_complete(struct mwifiex_adapter *adapter)
	50	{
	51	adapter->hw_status = MWIFIEX_HW_STATUS_NOT_READY;
	52	adapter->init_wait_q_woken = true;
	53	wake_up_interruptible(&adapter->init_wait_q);
	54	return 0;
	55	}
	56
	57	/*
600f5d90	58	* This function sends init/shutdown command
5e6e3a92	59	* to firmware.
5e6e3a92	60	*/
600f5d90 AK	61	int mwifiex_init_shutdown_fw(struct mwifiex_private *priv,
600f5d90 AK	62	u32 func_init_shutdown)
5e6e3a92	63	{
5e6e3a92 BZ	64	u16 cmd;
	65
	66	if (func_init_shutdown == MWIFIEX_FUNC_INIT) {
	67	cmd = HostCmd_CMD_FUNC_INIT;
	68	} else if (func_init_shutdown == MWIFIEX_FUNC_SHUTDOWN) {
	69	cmd = HostCmd_CMD_FUNC_SHUTDOWN;
	70	} else {
600f5d90	71	dev_err(priv->adapter->dev, "unsupported parameter\n");
5e6e3a92 BZ	72	return -1;
	73	}
	74
636c4598	75	return mwifiex_send_cmd_sync(priv, cmd, HostCmd_ACT_GEN_SET, 0, NULL);
5e6e3a92	76	}
600f5d90	77	EXPORT_SYMBOL_GPL(mwifiex_init_shutdown_fw);
5e6e3a92 BZ	78
	79	/*
	80	* IOCTL request handler to set/get debug information.
	81	*
	82	* This function collates/sets the information from/to different driver
	83	* structures.
	84	*/
	85	int mwifiex_get_debug_info(struct mwifiex_private *priv,
	86	struct mwifiex_debug_info *info)
	87	{
	88	struct mwifiex_adapter *adapter = priv->adapter;
	89
	90	if (info) {
	91	memcpy(info->packets_out,
	92	priv->wmm.packets_out,
	93	sizeof(priv->wmm.packets_out));
	94	info->max_tx_buf_size = (u32) adapter->max_tx_buf_size;
	95	info->tx_buf_size = (u32) adapter->tx_buf_size;
c65a30f3 YAP	96	info->rx_tbl_num = mwifiex_get_rx_reorder_tbl(priv,
	97	info->rx_tbl);
	98	info->tx_tbl_num = mwifiex_get_tx_ba_stream_tbl(priv,
	99	info->tx_tbl);
5e6e3a92 BZ	100	info->ps_mode = adapter->ps_mode;
	101	info->ps_state = adapter->ps_state;
	102	info->is_deep_sleep = adapter->is_deep_sleep;
	103	info->pm_wakeup_card_req = adapter->pm_wakeup_card_req;
	104	info->pm_wakeup_fw_try = adapter->pm_wakeup_fw_try;
	105	info->is_hs_configured = adapter->is_hs_configured;
	106	info->hs_activated = adapter->hs_activated;
	107	info->num_cmd_host_to_card_failure
c65a30f3	108	= adapter->dbg.num_cmd_host_to_card_failure;
5e6e3a92 BZ	109	info->num_cmd_sleep_cfm_host_to_card_failure
	110	= adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure;
	111	info->num_tx_host_to_card_failure
c65a30f3	112	= adapter->dbg.num_tx_host_to_card_failure;
5e6e3a92 BZ	113	info->num_event_deauth = adapter->dbg.num_event_deauth;
	114	info->num_event_disassoc = adapter->dbg.num_event_disassoc;
	115	info->num_event_link_lost = adapter->dbg.num_event_link_lost;
	116	info->num_cmd_deauth = adapter->dbg.num_cmd_deauth;
	117	info->num_cmd_assoc_success =
c65a30f3	118	adapter->dbg.num_cmd_assoc_success;
5e6e3a92	119	info->num_cmd_assoc_failure =
c65a30f3	120	adapter->dbg.num_cmd_assoc_failure;
5e6e3a92 BZ	121	info->num_tx_timeout = adapter->dbg.num_tx_timeout;
	122	info->num_cmd_timeout = adapter->dbg.num_cmd_timeout;
	123	info->timeout_cmd_id = adapter->dbg.timeout_cmd_id;
	124	info->timeout_cmd_act = adapter->dbg.timeout_cmd_act;
	125	memcpy(info->last_cmd_id, adapter->dbg.last_cmd_id,
	126	sizeof(adapter->dbg.last_cmd_id));
	127	memcpy(info->last_cmd_act, adapter->dbg.last_cmd_act,
	128	sizeof(adapter->dbg.last_cmd_act));
	129	info->last_cmd_index = adapter->dbg.last_cmd_index;
	130	memcpy(info->last_cmd_resp_id, adapter->dbg.last_cmd_resp_id,
	131	sizeof(adapter->dbg.last_cmd_resp_id));
	132	info->last_cmd_resp_index = adapter->dbg.last_cmd_resp_index;
	133	memcpy(info->last_event, adapter->dbg.last_event,
	134	sizeof(adapter->dbg.last_event));
	135	info->last_event_index = adapter->dbg.last_event_index;
	136	info->data_sent = adapter->data_sent;
	137	info->cmd_sent = adapter->cmd_sent;
	138	info->cmd_resp_received = adapter->cmd_resp_received;
	139	}
	140
	141	return 0;
	142	}
	143
	144	/*
	145	* This function processes the received packet before sending it to the
	146	* kernel.
	147	*
	148	* It extracts the SKB from the received buffer and sends it to kernel.
	149	* In case the received buffer does not contain the data in SKB format,
	150	* the function creates a blank SKB, fills it with the data from the
	151	* received buffer and then sends this new SKB to the kernel.
	152	*/
	153	int mwifiex_recv_packet(struct mwifiex_adapter adapter, struct sk_buff skb)
	154	{
270e58e8 YAP	155	struct mwifiex_rxinfo *rx_info;
270e58e8 YAP	156	struct mwifiex_private *priv;
5e6e3a92 BZ	157
	158	if (!skb)
	159	return -1;
	160
	161	rx_info = MWIFIEX_SKB_RXCB(skb);
9da9a3b2	162	priv = mwifiex_get_priv_by_id(adapter, rx_info->bss_num,
c65a30f3	163	rx_info->bss_type);
5e6e3a92 BZ	164	if (!priv)
	165	return -1;
	166
	167	skb->dev = priv->netdev;
	168	skb->protocol = eth_type_trans(skb, priv->netdev);
	169	skb->ip_summed = CHECKSUM_NONE;
	170	priv->stats.rx_bytes += skb->len;
	171	priv->stats.rx_packets++;
	172	if (in_interrupt())
	173	netif_rx(skb);
	174	else
	175	netif_rx_ni(skb);
	176
	177	return 0;
	178	}
	179
5e6e3a92 BZ	180	/*
	181	* IOCTL completion callback handler.
	182	*
	183	* This function is called when a pending IOCTL is completed.
	184	*
	185	* If work queue support is enabled, the function wakes up the
	186	* corresponding waiting function. Otherwise, it processes the
	187	* IOCTL response and frees the response buffer.
	188	*/
efaaa8b8 AK	189	int mwifiex_complete_cmd(struct mwifiex_adapter *adapter,
efaaa8b8 AK	190	struct cmd_ctrl_node *cmd_node)
5e6e3a92	191	{
600f5d90 AK	192	atomic_dec(&adapter->cmd_pending);
600f5d90 AK	193	dev_dbg(adapter->dev, "cmd completed: status=%d\n",
c65a30f3	194	adapter->cmd_wait_q.status);
5e6e3a92	195
efaaa8b8	196	*(cmd_node->condition) = true;
5e6e3a92	197
600f5d90 AK	198	if (adapter->cmd_wait_q.status == -ETIMEDOUT)
	199	dev_err(adapter->dev, "cmd timeout\n");
	200	else
	201	wake_up_interruptible(&adapter->cmd_wait_q.wait);
5e6e3a92 BZ	202
	203	return 0;
	204	}